Class: Delayed::Command

Inherits:
Object
  • Object
show all
Defined in:
lib/delayed/command.rb

Overview

rubocop:disable ClassLength

Constant Summary collapse

DIR_PWD = 
Pathname.new Dir.pwd

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(args) ⇒ Command

rubocop:disable MethodLength



18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
 
# File 'lib/delayed/command.rb', line 18

def initialize(args) # rubocop:disable MethodLength
  @options = {
    :quiet => true,
    :pid_dir => "#{root}/tmp/pids",
    :log_dir => "#{root}/log"
  }

  @worker_count = 1
  @monitor = false

  opts = OptionParser.new do |opt|
    opt.banner = "Usage: #{File.basename($PROGRAM_NAME)} [options] start|stop|restart|run"

    opt.on('-h', '--help', 'Show this message') do
      puts opt
      exit 1
    end
    opt.on('-e', '--environment=NAME', 'Specifies the environment to run this delayed jobs under (test/development/production).') do |_e|
      STDERR.puts 'The -e/--environment option has been deprecated and has no effect. Use RAILS_ENV and see http://github.com/collectiveidea/delayed_job/issues/7'
    end
    opt.on('--min-priority N', 'Minimum priority of jobs to run.') do |n|
      @options[:min_priority] = n
    end
    opt.on('--max-priority N', 'Maximum priority of jobs to run.') do |n|
      @options[:max_priority] = n
    end
    opt.on('-n', '--number_of_workers=workers', 'Number of unique workers to spawn') do |worker_count|
      @worker_count = worker_count.to_i rescue 1
    end
    opt.on('--pid-dir=DIR', 'Specifies an alternate directory in which to store the process ids.') do |dir|
      @options[:pid_dir] = dir
    end
    opt.on('--log-dir=DIR', 'Specifies an alternate directory in which to store the delayed_job log.') do |dir|
      @options[:log_dir] = dir
    end
    opt.on('-i', '--identifier=n', 'A numeric identifier for the worker.') do |n|
      @options[:identifier] = n
    end
    opt.on('-m', '--monitor', 'Start monitor process.') do
      @monitor = true
    end
    opt.on('--sleep-delay N', 'Amount of time to sleep when no jobs are found') do |n|
      @options[:sleep_delay] = n.to_i
    end
    opt.on('--read-ahead N', 'Number of jobs from the queue to consider') do |n|
      @options[:read_ahead] = n
    end
    opt.on('-p', '--prefix NAME', 'String to be prefixed to worker process names') do |prefix|
      @options[:prefix] = prefix
    end
    opt.on('--queues=queues', 'Specify which queue DJ must look up for jobs') do |queues|
      @options[:queues] = queues.split(',')
    end
    opt.on('--queue=queue', 'Specify which queue DJ must look up for jobs') do |queue|
      @options[:queues] = queue.split(',')
    end
    opt.on('--pool=queue1[,queue2][:worker_count]', 'Specify queues and number of workers for a worker pool') do |pool|
      parse_worker_pool(pool)
    end
    opt.on('--exit-on-complete', 'Exit when no more jobs are available to run. This will exit if all jobs are scheduled to run in the future.') do
      @options[:exit_on_complete] = true
    end
    opt.on('--daemon-options a, b, c', Array, 'options to be passed through to daemons gem') do |daemon_options|
      @daemon_options = daemon_options
    end
  end
  @args = opts.parse!(args) + (@daemon_options || [])
end

Instance Attribute Details

#worker_count ⇒ Object

Returns the value of attribute worker_count.



14
15
16
 
# File 'lib/delayed/command.rb', line 14

def worker_count
  @worker_count
end

#worker_pools ⇒ Object

Returns the value of attribute worker_pools.



14
15
16
 
# File 'lib/delayed/command.rb', line 14

def worker_pools
  @worker_pools
end

Instance Method Details

#daemonize ⇒ Object

rubocop:disable PerceivedComplexity



87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
 
# File 'lib/delayed/command.rb', line 87

def daemonize # rubocop:disable PerceivedComplexity
  dir = @options[:pid_dir]
  FileUtils.mkdir_p(dir) unless File.exist?(dir)

  if worker_pools
    setup_pools
  elsif @options[:identifier]
    # rubocop:disable GuardClause
    if worker_count > 1
      raise ArgumentError, 'Cannot specify both --number-of-workers and --identifier'
    else
      run_process("delayed_job.#{@options[:identifier]}", @options)
    end
    # rubocop:enable GuardClause
  else
    worker_count.times do |worker_index|
      process_name = worker_count == 1 ? 'delayed_job' : "delayed_job.#{worker_index}"
      run_process(process_name, @options)
    end
  end
end

#run(worker_name = nil, options = {}) ⇒ Object 



129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
 
# File 'lib/delayed/command.rb', line 129

def run(worker_name = nil, options = {})
  Dir.chdir(root)

  Delayed::Worker.after_fork
  Delayed::Worker.logger ||= Logger.new(File.join(@options[:log_dir], 'delayed_job.log'))

  worker = Delayed::Worker.new(options)
  worker.name_prefix = "#{worker_name} "
  worker.start
rescue => e
  STDERR.puts e.message
  STDERR.puts e.backtrace
  ::Rails.logger.fatal(e) if rails_logger_defined?
  exit_with_error_status
end

#run_process(process_name, options = {}) ⇒ Object 



121
122
123
124
125
126
127
 
# File 'lib/delayed/command.rb', line 121

def run_process(process_name, options = {})
  Delayed::Worker.before_fork
  Daemons.run_proc(process_name, :dir => options[:pid_dir], :dir_mode => :normal, :monitor => @monitor, :ARGV => @args) do |*_args|
    $0 = File.join(options[:prefix], process_name) if @options[:prefix]
    run process_name, options
  end
end

#setup_pools ⇒ Object 



109
110
111
112
113
114
115
116
117
118
119
 
# File 'lib/delayed/command.rb', line 109

def setup_pools
  worker_index = 0
  @worker_pools.each do |queues, worker_count|
    options = @options.merge(:queues => queues)
    worker_count.times do
      process_name = "delayed_job.#{worker_index}"
      run_process(process_name, options)
      worker_index += 1
    end
  end
end